I, unfortuately have to fly ARF's because of an allergy to most new glues we now use. What is fortunate, are the advances in quality that most importers are putting into the products they sell. That being said, I still have learned to take the time to inspect and fix anything that looks suspect. If it needs beefing, I beef; tri-stocking, I tri-stock. I don't buy anything that is first on the market without reading what others experience. After reading the posts on the Sig Sukhoi, I did strip the covering off of the underside of the wing for inspection. I made some mods to my satisfaction, and the wing is very strong. This whole proceedure took about 1 1/2 hrs. I also added tri-stock to the stab section, and parts of the interior fuse that looked weak. I ahve a G-45 on mine, and it flies great........